<?php
// +----------------------------------------------------------------------
// | CoreThink [ Simple Efficient Excellent ]
// +----------------------------------------------------------------------
// | Copyright (c) 2014 http://www.corethink.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: ijry <ijry@qq.com> <http://www.corethink.cn>
// +----------------------------------------------------------------------
namespace User\Api;
define('UC_CLIENT_PATH', dirname(dirname(__FILE__)));

//载入配置文件
require_cache(UC_CLIENT_PATH . '/Conf/config.php');

//载入函数库文件
require_cache(UC_CLIENT_PATH . '/Common/common.php');

/**
 * UC API调用控制器层
 * 调用方法 A('Uc/User', 'Api')->login($username, $password, $type);
 */
abstract class Api{
    /**
     * API调用模型实例
     * @access  protected
     * @var object
     */
    protected $model;

    /**
     * 构造方法，检测相关配置
     */
    public function __construct(){
        //相关配置检测
        defined('UC_APP_ID') || throw_exception('UC配置错误：缺少UC_APP_ID');
        defined('UC_API_TYPE') || throw_exception('UC配置错误：缺少UC_APP_API_TYPE');
        defined('UC_AUTH_KEY') || throw_exception('UC配置错误：缺少UC_APP_AUTH_KEY');
        defined('UC_DB_DSN') || throw_exception('UC配置错误：缺少UC_DB_DSN');
        defined('UC_TABLE_PREFIX') || throw_exception('UC配置错误：缺少UC_TABLE_PREFIX');
        if(UC_API_TYPE != 'Model' && UC_API_TYPE != 'Service'){
            throw_exception('UC配置错误：UC_API_TYPE只能为 Model 或 Service');
        }
        if(UC_API_TYPE == 'Service' && UC_AUTH_KEY == ''){
            throw_exception('UC配置错误：Service方式调用Api时UC_AUTH_KEY不能为空');
        }
        if(UC_API_TYPE == 'Model' && UC_DB_DSN == ''){
            throw_exception('UC配置错误：Model方式调用Api时UC_DB_DSN不能为空');
        }

        $this->_init();
    }

    /**
     * 抽象方法，用于设置模型实例
     */
    abstract protected function _init();
}
